Machine for making nails or pins from wire.



I. WIKSCHTRUM.

MACHINE FOR MAKING NAILS 0R PINS FROM WIRE.-

APPLICATION FILED IAN.26. 1914.

v Patented Nov. 13, 1917.

5 SHEETS-SHEET I.

Attorney.

I. wmscm'dm. MACHINE FOR MAKING NAILS 0R PINS FROM WIRE.

APPLICATION FILED IAN.26. I914.

Patented Nov. 13,1917.

5 SHEETS-SHEET 2.

'Wim ses:

1. WIKSCHTR O M. MACHINE FOR MAKING NAILS OR PI NS FROM WIRE.

' APPLICATION FILED JAN.26, 1914. 1,246,513. Patented Nov. 13, 1917.

SSHEETS-SHEET a.

m: ntor: Moi he I. ttorney.

I. WIKSCHTRb M.

MACHINE FOR MAKING NAILS 0R PINS FROM WIRE.

APPLICATION FILED IANJB, I914. I I

Patented Nov. 13,1917.

5' SHEETS-SHEET 4- J. wmscmtim.

MACHINE FOR MAKWG NAILS 0R PINS FROM WIRE. APPLICATION FILED v4.2a.1914.

1 ,246, 5 1 3 Patented Nov. 13, 1917- Y 5 SHEETS-SHEET 5 Witnesseserwwlwlg '6? an 7] Attorney.

JAKOB wrxscn'mom, or nns'srm'nonr, ERMANY.

MACHII IE FOR MAKING NAILS OR PINS WIRE.

Specification of Letters Patent.

Patented Nov. 13

Application filed Jeni-ret ree, 1'9'1 4.- serial; no; 814,487. 1

To all whom it may concern:

Be it known that I, JAKOB WIKscHrRoa-t, a citizen of the German Empire,residing at Dusseldorf, in the Kingdom of Prussia, Germany, haveinvented certain new and useful Improvements in Machines for Mak ingNails or Pins from Wire; and I do here by declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled. in'the art to which it appertains to make and use thesame.

Myinvention relates to improvements in machines for making nails or pinsfrom wire, and the object of the improvements'is to provide a machinewhich is simple in construction'and reliable in operation. 'lVith' thisand other objects in View my invention consists in the matters describedhereinafter and particularly pointed out in the appended claims.

For the purpose'of explaining the invention an example embodying thesame has been shown in the accompanying drawings, in which the sameletters of reference have been used in all the views to indicatecorresponding parts.

In said drawings V Figure l, is a side View of the machine,

Fig; 2, is a plan View thereof, v I

Fig. 3, is a longitudinal section taken on theli-ne. AA of Fig. 2 andseen in the direction of the arrow a1,

Fig. 4, is a. section taken on the line of Fig. 2 and seen in thedirection" of. the

arrow y, j r

Fig. 5', is a similar section seen in. the (iirection of the'arrow' z, I

Fig; 6, is an enlarged; detail View showing. the levers. the cutters andtheir bearings,

Fig; 7 is a section taken on the line Cf-G of Fig. 6 and seenin thedirection of the arrow'w;

Fig. 8, is a side view of one of the levers" carrving the cutters,

Figs; 9 and 10; show the lever which car-- ries the movable clamping"jaw' anclt the mechanism for operating the same. 7

'Fig. 11, is a sideview" of the machine seen from the rear in Fig; 2;and i Fig; 12. is a longitudinal section ofitlie machine taken onthe-line- A-A ofFigQ:

In the example shown in" thedrawings the machine consists of a framecomprising: hearings I and 2*- fer a shaft 6; onwhich a fixed pulley 3,a loose pulley and a fly wheel 5 are mounted. Between the bearings 1and?! the shaft 6 carries twocam disks/7 and 8' of equal form, andbetween the said cam disks a third c'am disk 9 is pro ided the cam faceof which is different from'that of the disks 7 and Si Adj cent tothemainshaft 6 and parallel thereto a rock shaft 10' is mounted in bearingsof;the machine frame,to which a hell crank lever having three arms 11. 18',15 is hey'edrthe" medium arm 11' carrying at its end" lateral rollers 12adapted to roll on the cam dislis' 7 and 8 respectively, and the lowerarm 13 carrving archer 14 e aged by the camf disk 9., The cam faces ofthe disks 7 and 8 and the cam face of the disk 9 correspond to eachother in such way; that they impart,

positive rocking movement to the bell crank lever. The, third arm 15 ofthe bell crank lever is constructed at its end with a rounded head 16which located its medium position ah ore the shaft 10. Onthe pit 0616 anarihil'? has rocking'siipport. the end of which carries the headingpunch 18 which is adapted to be" adiusted inlongitudinal direction hv ascrew 19. The bearingof the arm 17 which engages the head is pro, vid'edin the upper part of the horizontal arm 17, and the punch 18 isprovided" at the opposite end of the said arm and the" lower endthereof; i

Lateral guides are provide-l for the arm- 1? by means of angle hars 21secured to; the frame- Err-screws 520. as is best sliow in Fig; 4'. Atthe side of the arm l u'g 22- is provided? to WliiCl'i'ii screw 23' isseem-ea which carries at its lower end a dis]? To the lower part of theframe of the ma chine" springs 25 are secured which are pom nectedi attheir ends ith thenti 17 by links 26 and tend to pull the said armdown,- ward. rock inq lever' 3l, 32 is mounted on a semi circular'pivot27 secured to the frame of the;

shaft The'ar'm 30 extends above thearm 31' of the two" acm lever' 31. 32monnt'e'd 6stlie'pivot 27; The otlierarrti 32 of the said? At a ri ht anina the ma t"? a lever exte ds he'low -tliedisk 24, as is hesfi-rshawninfiicgei I 4 In circulfr ent' -ent portion' 33 f frame of themachine we reciting Is as, at are resumed; the 3 4 at when are directedtoward the mainsh'aft 6 and are equipped with rollers engaging in camgrooves 36 of drums 36' mounted on the;

form of hubs, and they bear at opposite sides on the walls of thecut-out portion 33. At their upper sides the said parts areslightlynotched as shown at and clamping plates 40 secured to the frameof the machine extend '1 with. substantially semicylindrical portions 40into the said notched portions and close thebearings for the leversatthe upper sides and hold the same in position, as is shown in Figs. 4,5, 6, 7

-and8. The semi-cylindricalhub portions 34 are made integral withthearms'34 and 37 whichare provided at opposite sides,

The plates 39 close the bearings of the blades. p

As appears from Figs, 2 and 4 to 6. the rocking levers 34, 37 aredisposed with their adjacent sides at a distance from each other so asto provide a free space through which the heading punch 17 can be rockeddownwardand in heading position relativelyto arm 49 jointed to the link46.

crank arm 48 is provided on the shaft 47 for transmitting the rockingmovement of chine.

wire clamping means to be described here inafter.

At the end of the shaft which is opposite to the pulleys 3 and 4 and-thefly wheel5 a bell crank lever is secured tothe shaftwhich consists ofthree arms 41, 42 and 45. The arms 41 and 4:2- are provided with rollersengaged by cam disks-43 and 44, by means of which. positive rockingmovement can be imparted to the bell crank lever. To

the. third arm 45 a link 46 is jointed by means of which the rockingmovement of the bell crank lever is transmitted to a shaft 47.wh1ch forthis purpose carrles a crank the shaft to a wire feeding device 50provided on the frame of the machine and constructed in any known or,preferred way.

In front of the cutter 38 and below a plate 51 a stationary clamping aw52 1s provided, which is. adapted to coijperate with a movable clampingjaw 53 embedded.

within a rccking. lever 54 disposed with its semi-cylindrical endin acircular.cut-out:

portion 55 of the machine frame, thecenter of which is located in theaxis of the wire being fed to the operative parts of the ma- Theopposite end of the lever carries a roller 56.. A spring 57 isprovidedfor forcing the lever 54 in, contact withits bear:

A second in orovided b the cut-out jortion 55 and a spring 64 acting onthe opposite end of the lever tends. to .rock: the same outward.

This construction 18 best shown 1n Fl 's. 9

and 10.

Laterally of the fly wheel 5 a bell cran. lever-having three arms 58,59, and 6'21 monnted The arms 58 and 59 engage cam disks 60 and 61secured to the main shaft 6 and im iart )ositive rockin movement to.

the bell crank lever. On the arm 62 a block 6.6 is mounted, which isadapted to be adjusted means of an adjusting screw 63. The block is heldin position by means of a clampingarin 66 engaging. in a .hole63? madein the block and acapted to be forced in clamping engagement by a screw66 By setting the screws 63 and 6." the block 66 can be adjustedforwardand backward,

be undcrstoodffrom F gs. 9 o

as will readily and 10.

The operation of, the. machine is as fol lows: p

At the beginning of the operation the arm lTwhich carries the headingpunch is in thepositio'n shown in Figs. 1, 3, 4, lland 12. The arm 28isengagedbyabulged por tion of the cam 29 and has been rocked upward.while the arm. 30 has been lowered.

As the arm 30 extends above the arm 31 j of the transverse rocking lever31, 32, the arm 31 is also in depressed position, while the arm 32. isin elevated position. As the arm 32 engages below the disk 24 0f the lug22 secured to the arm 17, the arm 17 is held in elevated positionagainst the action of the springs 25.

If nowthe wire is advanced by means of the feeding mechanism50, themovable clamping jaw 53 is. forced into engagement with the stationaryjaw 52 so as to clamp the wire. This is done. in the following way:

Thecam disk 61 rocks the lever 59 upward and the arm to the right in Fi1 whereby the blockGS is forced forward. At

the beginning of the movementythe block 66 and a sector 65 have thepositions shown.

Thespring 67 acting through in Fig. '9. V I the lever 54 forces theroller 56 against th block 66 and the sector65. v V i If new the block66 is advanced the sector 65 .is rocked, the block'rocking the sector.Thereby the lever 54 is forced inward and with the clamping jaw 53 intoclamping engagement with-the stationary jaw 52. The

block 66 is advanced so far that the par-v allelsurfaces provided behindits wedged part are between the sector 65'andthe' roller 56, so that'thepressure of lever 54 does not act any more on lever 62, but istransmittedthrough the sector 65-to the frame of the machine, as isshown in Fig. 10. Therefore there: is no pressure onthefroller ofthejlever 59.

After the wire has thus been clamped the levers 3% which are guided inthe grooves 35 of the disks 36 are rocked outward, so that the arms 37which carry the cutters 38 are forced into engagement with each other soas to form the point of thenail:

After a finished nail has been dropped from the dies 52, 53, a shortlength of wire projects, which is used for forming the head of the nextnail.

After the cutters have been separated again, the arm 17 is moveddownward by a flatportion of the cam disk 29 engaging below the arm 28,so that the said arm is rocked (lOWnVHfCl and the arm 30 is movedupward; Thereby also the arm 31 is free to be rocked upward, and the arm17 can be rocked downwardby the springs 25. The downward movement istemporarily arrested when the lower part of the heading punch which isformed with a heading die 181 is in front of thewire. F 7

' In the meant me the/cam disk 7 has been turned so far, that a portiona of increasing radius gets in engagement with the roller of arm 12, soas to rock the same upward and to move the arm 15. Thereby arm 17 ismoved in a direction .toward the jaws 52, 53, whereby a preliminaryheading is performed.

After the portion a of the cam disk has passed the arm 12, the latter isreturned a short distance, whereupon the arm 17 is rocked fartherdownward by the operation of the cam 29, so that the part 182 of thepunch which is provided for finishing the head of which has undergonethe preliminary headmg.

Now the portion 7) of the cam disk, the radius of which is increasing,comes into action and rocks the arm 12 upward, so that the arm 15 ismoved which moves the arm 17 again toward the jaws 52, 53 and completesthe heading operation.

After the arm had been returned it was forced upward by the cam disk 29against the action of the springs 25. The cam disk 61 returns the arm 62and retracts the block 66, whereby also the sector 65 is allowed toreturn into initial position. The lever 51 is forced by the spring 67 inthe direction toward the sector 65, so that the clamping jaw 53 isseparated from the jaw 52.

Now the wire is again fed. cut, and headed in the manner describedabove.

By means of the adjusting screw 63 the block 66 can be set in differentpositions. Thereby the opening of the jaws can be set exactly accordingto the thickness of the wire.

The heading punch 18 can be set at different heights by means of thescrew 23, while it can be set in longitudinal direction by means of thescrew 19.

the nail is in front of the wire I By the downward stroke of the arm 17a nail which might still be attached to the end of the wire is separatedtherefrom.

Instead of a double acting heading punch for performing at first apreliminary heading and thereafter finishing the nail, a single actingpunch may be provided which'heads the nail by a single stroke.

T he'method of mounting the levers carr the punch 18, the said armcannot be'rocked upward by th heading operation. The arm is advanced ina horizontal direction, but the pressure acts downward and rearward.

I claim herein as my invention:

Lin a wire nail machine, the combination with a wire clamping mechanism,of a heading punch comprising an arm having a plurality of heading diesthereon, means to move the arm to bring the dies successively intooperative position relatively to the wire and a bell crank partiallysupporting said arm and operating to actuate the punch in its successivepositions.

In a wire nail machine, the combination with a wire clamping mechanism,of a heading punch comprising an arm having a preliminary heading dieand a finishing die superposed on its free end, means to move the arm tobring the dies successively into operative position relatively to thewire, a bell crank on which said arm is pivoted and means to oscillatethe lever tov reciprocate the punch when the dies are in their operativepositions.

3. In. a wire nail machine, the combination with a wire feedingmechanism and a wire clamping mechanism, of a bell crank lever, a puncharm pivoted on one arm of said lever, superposed dies on the free end ofthe punch arm, means to impart a step by step movement to the latter ina vertical plane, and'means to rock the lever to reciprocate said puncharm longitudinally at each step of its movement.

4. In a wire nail machine, the combination with a wire feedingmechanism, and a Wire clamping mechanism, of a punching mechanismcomprising an oscillatory three armed bearing member, an arm pivoted onone arm of the latter, superposed dies on the free end of the pivotedarm, means to impart a step by step vertical movement to the pivoted armto bring the dies successively into operative position, and means tooscillate the bearing member at each step of the arm.

5. In Wire nail machine, the combination with a wire feeding mechanism,and a Wire clamping mechanism, of a punching mechanism comprising anoscillatory bearing member, an arm pivoted on the latter at one end nearthe upper edge of the arm, a finishing die and a superposed preliminarydie onthe free end of the arm near the lower edge thereof, means toswing the arm in a vertical plane and to arrest the same in differenthorizontal planes to successively bring the preliminary and finishingdies into operative relation with the Wire, and means to oscillate thebearing member to reciprocate the arm in its arrested positions.

6. In a machine for making nails, pins, and the like from Wire, thecombination With a heading punch having a heading face, andwvire feedingmeans, of a rocking lever engaging said heading punch and adapted to setthe same with -clilferent parts of its heading face in heading positionrelatively to the Wire, a bell crank lever operating said rocking lever,a rotary member comprising tvvo cam faces acting on the arms of the bellcrank lever and adapted to impart positive rocking movement thereto, andsprings tending to move the heading punch in opposition to its settingmeans. I

7. In a machine for making nails, pins, and the like from wire, thecombination With a heading punch having a heading face,

and wire feeding means, of a rocking lever engaging said heading punchand disposed at a right angle thereto and adapted to set the same withdifferent parts of its heading face in heading position relatively tothe Wire, a bell crank lever operating said rocking lever, a rotarymember comprising two cam faces actingon the arms of the bell cranklever and adapted to impart positive rocking movement thereto, andsprings tending to move the heading punch in opposition to its settingmeans. I I V 8. In a machine for making nails, pins, and the like fromWire, the combination With the machine frame, Wire feeding means, andheading means, of Wire clamping means comprising a rocking member thepivotal axis of which intersects the longitudinal axis of the Wire beingfed.

9. In a machine for making nails, pins, and the like from Wire, thecombination with, the machine frame, Wire feeding means, and headingmeans, of Wire clamping means comprising a rocking member the pivotalaxis of Which intersects the longitudinal axis of the Wire being fed,the pivot of the said member being provided by the cylindrical rear faceof the member engaging in a corresponding cut-out portion of the machineframe. 7

In testimony whereof I hereunto aflix my signature in the presence oftwo Witnesses.

JAKOB WIKSCHTRGM. [1 s] Witnesses:

JOI-IANNES WAGNER, FRANZ KIMMER RAMP.

' Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. G.

